How Much Solar Do I Need For a 2000 Sq Ft home or house?
April 13, 2020

Hi! Probably the most frequently asked question we get here is, “How much solar does it take to power my 2,000 sqft home?” My answer is always the same. “I don’t know. How much power do you use?” I’m not trying to be flip, I honestly don’t know. The power usage for different homes are going to be so wildly different, there is no way of knowing how much power someone uses based on their square footage. Is the house located in the north with bad insulation and electric baseboard heaters? Or is it a house with a tight building envelope and gas heat? Is it located in the south with the highest loads being air conditioning run 24/7, or is it in a mild environment with a couple of fans occasionally? Are you heating your water with an electric water heater, or an oil furnace? Do you have family members who find it challenging to turn off a light when they leave the room (you know who you are)? Are you lighting with incandescent or LED light bulbs? The best way to determine how many solar panels you need is to look at your electric bill and see how many kWh a month you buy. You can then go to our grid-tied calculator to see how much solar would be needed to offset a percentage of your bill. Here’s an example of my electric bill. It shows 13 months of usage, so I can compare the latest month with the previous year. It is amazing what you can learn by studying your electric bill. By comparing the usage in different months, I can see my biggest use is in the summer, with the air conditioner running all day because of the home office. You can see that my usage dropped significantly from August 2018 to August 2019, as well as from July to August in 2019.


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